Combined gas exhauster and tar extractor



Aug. 19, 1924. 1,505,283v M. J. NUSIM v COMBINED ,GAS mkrmusma nn TAR EXTRAC'L'OR Filed May 20 1924 2 ShoothShut l INVENTOR Aug. 19 1924. v

v M ..J. NUSIM COMBINED'GAS EXHAUSTE? AND TAR EXTRACTOR;

I INVENTOR Miami; d/Vam'm.

Hi6 ATTORilE atented ug. 19, 1924.

STATES-PATENT OFFHCE.

MELAGH I. NUSI'M, OF EASTON, PENNSYLVANIA, ASSIGNOR TO INGEBSOLIl-BAND COH- P, 0F JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

COMBINED GAS nximusran'm ran nxrnecron.

Application filed May 20, 1924. Seria1 No. 7,14,570.

To all whom it mag concern: Y

Be it known that I, Memen- JQ NUsIM, a citizen of the United States, and a resident of. Easton, county of Northampton, and State of Pennsylvania, have invented a certain Gombined Gas Exhauster and Tar Extractor, of which the following ,is a specification accompanied by drawings.

This invention relates to blowing. appara tus and more particularly to exhausters of the centrifugal type which is intended to 0p erate on flulds, such as illuminating gas, which carry in suspension heavy, liquid or semi-solid matter as, for instance, tar which it is desired to separate from the gas;

It is an object of this invention to combine the operations of exhausting and tar separation in a single apparatus.

In the manufacture of illuminating gas,

the gas which is exhausted from the coke oven or similar apparatus, carries in suspension small quantities of heavy oils or .tar which are apt to collect in andclog the pipes. It is proposed by this invention-to combine apparatus for exhausting or compressing the gas and simultaneously extracting the tar.-

This is accomplished in a preferred form of the invention by use of a centrifugal impeller which accelerates the gas to a high-ve locity and projects it through a diffuser into a curved passa e which leads to a pressure chamber and also to a tar collecting chamber, the latter being situated somewhat beyond the pressure chamber, Due to the high velocity of the mixture of gas and tar, the tar is projected tangentially as the mixture follows the curved passage and such tar as adheres to the walls and radial plates provided for this purpose will be gradually moved forward by the gas blowing thereagainst until it reaches the dead space provlded by the tar collecting chamber. The invention will be more clearly under stood by reference to the following description taken in conjunction with the accompanying drawings in which similar reference characters refer to similar .parts.

Figure 1 is a vertical longitudinal-section of a combined gas exhausterand tar extractor of the centrifugal type constructed in accordance with the practice 'of' this invention, and Figure 2 is a cross section taken along the line 2--2 looking in the direction. of the ar rows.

in the lower hal its way through the same aperture J into.

Referring to the drawings, the blower comprises a casing A within which are rotatably mounted a plurality of impellers B which are adapted to draw-gas from an inlet G formed integrally with the casing A and by centrifugal force to expel it through diffusers D adjacent the outlet of the impellers and extending radially therefrom. The blower may be of the single stage or multi-stage type as desired. In this instance, there being three impellers shown,

the apparatus is of the three'stage type. Between the impellers B there are provided pressure chambers E adjacent the difl'users which are adapted to receive the gas forced by the impellers B through the diffusers D and to deliver it to the next succeeding impeller. The pressure chambers E are so ar ranged that the gas entering them from the difl'users I) is obliged to change its direction 180 following longitudinal passages D leading from the diffusers D to the pressure chambers E and tar collecting chambers F. In so doing, thetar or relatively heavy matter held in suspension is thrown out tangen tially and is projected into the tar collecting chambers F situated beyond the pressure chambers E with respect to thediifusers D. There are no gas outlets provided in the tar collecting chambers F and thereforethere is substantially no current of gas therein. Baflles G arranged circumferentially about the entrance to the chambers F are adapted to further prevent gas circulation within the chambers and also to assist in further tar separation as the gas impinges on these bafiles.

As the gas issues from the diffusers the tar may be projected against the outer walls of the pressure chambers E, but due to the current of gas which impinges thereagainst, the tar from the upper half of the passage D will work its way along the walls into the collecting chambers F. The lower half of the chambers F is cut off from commumcationwith the intermediate'pressure chambers E by a wall K upon which the tar from the upper half of thecollecting chamber drops and passes out through'an aperture L in alignment of the aperture J thence into the sump H. B gravity the tar separated o the passage D Wlll find the sump H;

Preferably, the impellers B are mounted i either-to-the ne 2 chamber having tudinal on 8 tated in the casing A. Seals P may to (prevent leakage between the impe 5 an the adjoining chambers. r

The fluid pressure on opposite sides of the impellers B is unequal because of the difference. in the areas against which they act and therefore there ispreferably provided.

10 a counter balancing drum Q inner side "to the presure develo d within the blower, and at its outer side tive ressure of the inlet G or to atmosp ere. this manner, the 15 end thrust on the shaft 0 is eliminated. The difiuser D on the last stage may, if desired, lead directly to the outlet R and thence to single shaft 0 by which they are roan which may be suitabliejournalled provided suitable conduits'for consumption or storage.

- I claim: 1. A combined gas exhauster and tar extractor for gas, comprising a casing, an impeller rotatably mounted within the casing, a diffuser adjacent the outlet of said impeller and extending radially therefrom, a pressure an outlet, a tar collecting from said difiuser and havchamber remote ing no outlet for gas, and a longitudinal d difiuser to said assage leadin fro i h m r "andsaid collecting 2. a combinea gafaiataa as i553 tractor for gas, comprising a casing, an im- 8,

seller rotatabl mounted in said casing, a 'fiuser extending, radially from said imseller, a ressure chamber adjacent said fiuser,a ongitudinal lea p from said difiuser tofsaid chamber, and "a tar collecting chain remotefrom sai difiuser and connected thereto by said longisaid ressure chamber bein between sai andsaid co chamber. 3. combined gas exhauster and tar exllers B exposed at its' tar. to said said pressure cham r to the collecting chamber.

4:. A combined gas exhauster and tar extractor for gee comprising a casing, an impeller rotata ly mounted a diffuser ad; peller and extending radially therefrom, a pressure chamber collecting chamber remoteflfrom said rdlifuser and having no outlet tudinal passage leading fromsaid diffuser to said pressure chamberand saidmollecting' L chamber, and a wall separating the lower half of said longitudina p L from said collecting chamber to prevent. t e. return of 10 5. A combin gas exhauster and tar extractor for gas, comprising a: casing, an impeller'frotatably inounted' within the casa 'difiuseradjacentthe outlet of".s a id impeller and extending radially therefrom, a ressure chamber havi g an .outlet, a tar coiiecting chamber remo from said diffuser and having no outlet forges, a longitudinal passage leading from said diffuser d to said pressure chamber and said collecting chamber,'and radial baflles in said collecting chamber to collect tar by contact therewith. In testimony whereof I have signed this specification. MELACH J.

within thecasing, .qo acent the outlet of said-imhaving an outlet, a mpit?" a longi- 'le' 

